Using emergy analysis method,I conduct quantitative analysis of social,economic and natural systems in Sichuan's Baisha River valley during the period 2002-2006,through the establishment of indicators.I compare th...Using emergy analysis method,I conduct quantitative analysis of social,economic and natural systems in Sichuan's Baisha River valley during the period 2002-2006,through the establishment of indicators.I compare the emergy of Baisha River valley,with that of Xinjiang's Manas River valley and Sichuan Province,and evaluate the sustainable development conditions in Baisha River valley,in order to provide corresponding reference for the development and utilization of Baisha River valley in the future.The results show that from the perspective of emergy input of economic system,Baisha River valley is a typical ecological and economic zone with rich resources to be developed;in terms of the development of natural conditions and utilization of ecological resources,the resource utilization intensity of Baisha River valley is weak and the environmental loading ratio there is low,thus the level of emergy yield needs to be improved;the system of Baisha River valley has enormous capacity for sustainable development and good potential for development.展开更多
Studies on the aerolite fragments from Baisha crater, Hainan Island prove that they belong to calcium-rich achondrite which are relicts of cratering meteorite of the Baisha crater.These flat-ball shaped aerolite fragm...Studies on the aerolite fragments from Baisha crater, Hainan Island prove that they belong to calcium-rich achondrite which are relicts of cratering meteorite of the Baisha crater.These flat-ball shaped aerolite fragments, size being 21cm×18.5cm×8.7cm, were found in a creek within the Baisha crater. This hard aerolite weigh 3.75 kg with a density of 3.46g/cm<sub>3</sub>. It is mantled by a 0.1-0.5cm thick ,brown shell and its fresh section is dark-grey. The aerolite is characterized by porphyritic texture and no spherulitic texture has been found. Microscopic examination, X-ray diffraction analysis and electronic probe展开更多
This study aims to further promote the inheritance and innovative development of intangible cultural heritage in Yunnan Province,promote the protection,inheritance,integration,and innovation of ethnic culture in Lijia...This study aims to further promote the inheritance and innovative development of intangible cultural heritage in Yunnan Province,promote the protection,inheritance,integration,and innovation of ethnic culture in Lijiang,strengthen the protection and inheritance of Baisha murals in Lijiang,and change the teaching of art design majors in vocational colleges in Yunnan.Given the lack of traditional Chinese culture and local ethnic culture,this article focuses on the teaching of art design majors in Yunnan vocational colleges.It explores the construction model of the cultural inheritance and innovation carrier of Lijiang Baisha murals to meet the spiritual and cultural needs of the local people,and efforts will be made to promote the high-quality development of the Baisha ethnic area in Lijiang.展开更多
Introduction:This study investigated the causes and transmission pathways of an infectious diarrhea outbreak at a high school in Baisha County during November 2024 to inform response strategies for similar outbreaks.M...Introduction:This study investigated the causes and transmission pathways of an infectious diarrhea outbreak at a high school in Baisha County during November 2024 to inform response strategies for similar outbreaks.Methods:Field epidemiological methods were employed to investigate and characterize the outbreak’s epidemic features,while risk factors were analyzed through a case-control study.Case specimens underwent multipathogen polymerase chain reaction(PCR)chip screening combined with real-time fluorescent PCR to identify the causative pathogen.Reserved cafeteria food samples were tested for diarrheagenic Escherichia coli(DEC)-specific virulence genes using real-time fluorescent PCR.Environmental water samples were analyzed by the culture method(1)to quantify total bacterial count,total coliforms,and Escherichia coli.Results:A total of 344 cases were identified,yielding an attack rate of 11.44%.The most common clinical manifestations were diarrhea(80.23%)and abdominal pain(76.74%).Attack rates showed no statistically significant differences by gender or between boarding and day students(P>0.05).Case-control analysis demonstrated that consumption of school-provided direct drinking water was the primary risk factor for illness(odds ratio=3.87,95%confidence interval:1.18,12.68).Laboratory testing identified DEC in both patient specimens and inlet tap water samples from the dispensers;the DEC positivity rate in patient specimens reached 63.3%(19/30),with escV and pic+astA as the predominant virulence genes(either singly or in combination).Hygienic surveys revealed that the school’s direct drinking water dispensers failed to meet required standards;after these dispensers were deactivated,the incidence of new cases declined markedly.Conclusion:This outbreak was caused by DEC.The primary transmission route was consumption of direct drinking water supplied by substandard dispensers using contaminated source water,with person-toperson transmission occurring during the later stages of the outbreak.展开更多
文摘Using emergy analysis method,I conduct quantitative analysis of social,economic and natural systems in Sichuan's Baisha River valley during the period 2002-2006,through the establishment of indicators.I compare the emergy of Baisha River valley,with that of Xinjiang's Manas River valley and Sichuan Province,and evaluate the sustainable development conditions in Baisha River valley,in order to provide corresponding reference for the development and utilization of Baisha River valley in the future.The results show that from the perspective of emergy input of economic system,Baisha River valley is a typical ecological and economic zone with rich resources to be developed;in terms of the development of natural conditions and utilization of ecological resources,the resource utilization intensity of Baisha River valley is weak and the environmental loading ratio there is low,thus the level of emergy yield needs to be improved;the system of Baisha River valley has enormous capacity for sustainable development and good potential for development.
文摘Studies on the aerolite fragments from Baisha crater, Hainan Island prove that they belong to calcium-rich achondrite which are relicts of cratering meteorite of the Baisha crater.These flat-ball shaped aerolite fragments, size being 21cm×18.5cm×8.7cm, were found in a creek within the Baisha crater. This hard aerolite weigh 3.75 kg with a density of 3.46g/cm<sub>3</sub>. It is mantled by a 0.1-0.5cm thick ,brown shell and its fresh section is dark-grey. The aerolite is characterized by porphyritic texture and no spherulitic texture has been found. Microscopic examination, X-ray diffraction analysis and electronic probe
文摘This study aims to further promote the inheritance and innovative development of intangible cultural heritage in Yunnan Province,promote the protection,inheritance,integration,and innovation of ethnic culture in Lijiang,strengthen the protection and inheritance of Baisha murals in Lijiang,and change the teaching of art design majors in vocational colleges in Yunnan.Given the lack of traditional Chinese culture and local ethnic culture,this article focuses on the teaching of art design majors in Yunnan vocational colleges.It explores the construction model of the cultural inheritance and innovation carrier of Lijiang Baisha murals to meet the spiritual and cultural needs of the local people,and efforts will be made to promote the high-quality development of the Baisha ethnic area in Lijiang.
文摘Introduction:This study investigated the causes and transmission pathways of an infectious diarrhea outbreak at a high school in Baisha County during November 2024 to inform response strategies for similar outbreaks.Methods:Field epidemiological methods were employed to investigate and characterize the outbreak’s epidemic features,while risk factors were analyzed through a case-control study.Case specimens underwent multipathogen polymerase chain reaction(PCR)chip screening combined with real-time fluorescent PCR to identify the causative pathogen.Reserved cafeteria food samples were tested for diarrheagenic Escherichia coli(DEC)-specific virulence genes using real-time fluorescent PCR.Environmental water samples were analyzed by the culture method(1)to quantify total bacterial count,total coliforms,and Escherichia coli.Results:A total of 344 cases were identified,yielding an attack rate of 11.44%.The most common clinical manifestations were diarrhea(80.23%)and abdominal pain(76.74%).Attack rates showed no statistically significant differences by gender or between boarding and day students(P>0.05).Case-control analysis demonstrated that consumption of school-provided direct drinking water was the primary risk factor for illness(odds ratio=3.87,95%confidence interval:1.18,12.68).Laboratory testing identified DEC in both patient specimens and inlet tap water samples from the dispensers;the DEC positivity rate in patient specimens reached 63.3%(19/30),with escV and pic+astA as the predominant virulence genes(either singly or in combination).Hygienic surveys revealed that the school’s direct drinking water dispensers failed to meet required standards;after these dispensers were deactivated,the incidence of new cases declined markedly.Conclusion:This outbreak was caused by DEC.The primary transmission route was consumption of direct drinking water supplied by substandard dispensers using contaminated source water,with person-toperson transmission occurring during the later stages of the outbreak.
